EP0623403A4 - METHOD FOR FORMING WELDED TUBES AND FORMING MEDIUM PROVIDED THEREFOR. - Google Patents

METHOD FOR FORMING WELDED TUBES AND FORMING MEDIUM PROVIDED THEREFOR.

Info

Publication number
EP0623403A4
EP0623403A4 EP93919622A EP93919622A EP0623403A4 EP 0623403 A4 EP0623403 A4 EP 0623403A4 EP 93919622 A EP93919622 A EP 93919622A EP 93919622 A EP93919622 A EP 93919622A EP 0623403 A4 EP0623403 A4 EP 0623403A4
Authority
EP
European Patent Office
Prior art keywords
forming
turning
metal web
accuracy
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93919622A
Other languages
German (de)
French (fr)
Other versions
EP0623403B1 (en
EP0623403A1 (en
Inventor
Kenji Hada
Yasuo Kimiya
Daigo Sumimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5014283A external-priority patent/JPH05317979A/en
Priority claimed from JP1428293A external-priority patent/JPH05309422A/en
Priority claimed from JP1428493A external-priority patent/JP2642575B2/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP0623403A1 publication Critical patent/EP0623403A1/en
Publication of EP0623403A4 publication Critical patent/EP0623403A4/en
Application granted granted Critical
Publication of EP0623403B1 publication Critical patent/EP0623403B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A method of forming a welded pipe with high dimensional accuracy on a production line for the welded pipe, wherein a metal web having a predetermined width is continuously roll-formed and welded, and more particularly for bending the end portions of the metal web with high accuracy, and a forming stand therefor. A pair of top and bottom forming horizontal rolls or a forming horizontal roll, each split into two segments in the metal web width direction, can be each adjusted in position in the widthwise direction, and further, each split top roll segment has a construction capable of turning about and being fixed on a shaft disposed in the vertical direction. Further, in order to maximize the effect of the present invention, the direction of turning and the angle of turning are restricted. With the above-described arrangement, edge bending can be performed without impairing the accuracy in the wall thickness of the material to be formed, and further, common use of rolls for forming metal webs into pipes with different diameters is possible.
EP93919622A 1992-09-25 1993-09-07 Method of forming welded pipe and forming stand therefor Expired - Lifetime EP0623403B1 (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP25670892 1992-09-25
JP25670892 1992-09-25
JP256708/92 1992-09-25
JP5014283A JPH05317979A (en) 1992-03-25 1993-01-29 Welded pipe forming method and forming stand
JP1428293A JPH05309422A (en) 1992-03-13 1993-01-29 Formation of welded pipe and formed stand
JP14284/93 1993-01-29
JP1428393 1993-01-29
JP1428293 1993-01-29
JP14283/93 1993-01-29
JP1428493 1993-01-29
JP1428493A JP2642575B2 (en) 1992-09-25 1993-01-29 Welding tube forming method and forming stand
JP14282/93 1993-01-29
PCT/JP1993/001265 WO1994007621A1 (en) 1992-09-25 1993-09-07 Method of forming welded pipe and forming stand therefor

Publications (3)

Publication Number Publication Date
EP0623403A1 EP0623403A1 (en) 1994-11-09
EP0623403A4 true EP0623403A4 (en) 1995-11-29
EP0623403B1 EP0623403B1 (en) 1999-11-17

Family

ID=27456166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93919622A Expired - Lifetime EP0623403B1 (en) 1992-09-25 1993-09-07 Method of forming welded pipe and forming stand therefor

Country Status (3)

Country Link
EP (1) EP0623403B1 (en)
DE (1) DE69327045T2 (en)
WO (1) WO1994007621A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104889208A (en) * 2015-05-28 2015-09-09 南京皓威机械有限公司 Multi-degree-of-freedom three-roller pipe manufacturing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935500B1 (en) * 1970-12-05 1974-09-24
JP2692176B2 (en) * 1988-10-07 1997-12-17 住友金属工業株式会社 Welded pipe manufacturing equipment
JPH0698402B2 (en) * 1990-11-14 1994-12-07 川崎製鉄株式会社 Welded steel pipe strip edge forming roll

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9407621A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104889208A (en) * 2015-05-28 2015-09-09 南京皓威机械有限公司 Multi-degree-of-freedom three-roller pipe manufacturing machine

Also Published As

Publication number Publication date
DE69327045D1 (en) 1999-12-23
EP0623403B1 (en) 1999-11-17
EP0623403A1 (en) 1994-11-09
DE69327045T2 (en) 2000-06-29
WO1994007621A1 (en) 1994-04-14

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